40421310120 has 384 divisors, whose sum is σ = 141853420800. Its totient is φ = 10339467264.

The previous prime is 40421310113. The next prime is 40421310173. The reversal of 40421310120 is 2101312404.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 40421310093 and 40421310102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 54402469 + ... + 54403211.

It is an arithmetic number, because the mean of its divisors is an integer number (369409950).

Almost surely, 2^40421310120 is an apocalyptic number.

40421310120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40421310120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70926710400).

40421310120 is an abundant number, since it is smaller than the sum of its proper divisors (101432110680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40421310120 is a wasteful number, since it uses less digits than its factorization.

40421310120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991 (or 975 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 40421310120 its reverse (2101312404), we get a palindrome (42522622524).

The spelling of 40421310120 in words is "forty billion, four hundred twenty-one million, three hundred ten thousand, one hundred twenty".